radiant

Emitting heat or light.

Consisting of or emitted as radiation.

Filled with light shining especially as rays; brightly shining: synonym: bright.

Showing or expressing vitality or joy.

Splendid; glorious.

An object or point from which light or heat rays are emitted.

The apparent celestial origin of a meteoric shower.

In geometry, a ray conceived as revolving about its starting-point.

A substance that emits rays, specifically N-rays.